Head to head
Campbell Shag vs Chatham Shag
Campbell Shag
VS Chatham Shag
Both shags are confined to their own single island group, but their population trends and conservation status set them apart.
| Campbell Shag | Chatham Shag | |
|---|---|---|
| Scientific name | Leucocarbo campbelli | Leucocarbo onslowi |
| Endemic range | Campbell Island only | The Chatham Islands only |
| Conservation status | Near Threatened | Endangered |
| Population trend | Stable | Decreasing |
| Population size | Not documented as especially small | One of the rarer blue-eyed shag species |
| Blue eye-ring | Present | Present |
| Diving ability | Considerable depth | Considerable depth |
| Habitat | Ocean, coastal | Ocean, coastal |
Campbell Shag vs Chatham Shag: common questions
Which one has the more secure population?
The Campbell shag has the more secure population, classified as Near Threatened and relatively stable, compared with the Chatham shag's Endangered status and declining numbers.
Which one is considered rarer?
The Chatham shag is considered rarer, with a total population smaller than many of its close relatives, including the Campbell shag.
Do both shags breed on a single island group?
Yes, both species are confined entirely to their own single island group (the Campbell shag to Campbell Island and the Chatham shag to the Chatham Islands), rather than a wider shared range.